Dialer.GUO

It establishes a phone connection with a high rate number.
It changes the security settings of Internet Explorer.
It spreads
, across the Internet.

Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95

First detected on:

March 25, 2006

Detection updated on:

March 26, 2006

Statistics

No

Proactive protection:

Yes, using TruPrevent Technologies

Brief Description

Dialer.GUO is a dialer type malware. Dialers usually try to establish phone connections with high rate numbers, significantly increasing the phone bill of the affected user.

Dialer.GUO affects computers that use a modem to connect to the Internet, as the virus modifies the Dial-up network access settings. It changes the telephone number provided by the ISP (Internet Service Provider), which is a local-rate number, to a high-rate number.

It reduces the security level of the computer:
it changes the security settings of Internet Explorer, decreasing its security level.

Dialer.GUO uses the following propagation or distribution methods:

Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.

Via Internet, exploiting remote vulnerabilities: attacking random IP addresses, in which it tries to insert a copy of itself by exploiting one or more vulnerabilities.

Visible Symptoms

Dialer.GUO is easy to recognize, as it shows the following symptoms:

It changes the homepage of Internet Explorer.

It displays false error messages when it is run.

It creates shortcuts in the Windows Desktop.

ARE YOU FACING ANY PC OR INTERNET RELATED PROBLEMS? FREE SUPPORT INCLUDED. CALL US 24/7